Periodic Table and Reactivity

Beryllium is in group number______.

• Group 2

• Group 3

• Group 4

• Group 7

How many Valance electrons does Iodine Have?

• 6
• 16
• 7
• 17

Tags

NGSS.MS-PS1-1

Rows on the period table are called _____ while columns are called _____.

• groups, families
• groups, periods
• periods, groups
• families, groups

Tags

NGSS.HS-PS1-1

An element with five valence electrons is

• phosphorus
• oxygen
• beryllium
• rubidium

What correctly describes the nucleus of an atom?

• protons and electrons
• neutrons and electrons
• neutrons and protons
• protons, electrons, and neutrons

Tags

NGSS.MS-PS1-1

The outer most negatively charged particles of an atom are known as what?

• electrons
• protons
• neutrons
• valance electrons

Looking at the periodic table what other element reacts in a similar way to Si?

• Al
• P
• C
• H

Tags

NGSS.MS-PS1-2

Which particle carries a positive charge?

• Protons
• electrons
• atom
• neutrons

How many energy shells does Barium (Ba) have?

• 1
• 2
• 5
• 6

Tags

NGSS.HS-PS1-1

Which element has 2 energy shells and 3 valence electrons

• Si
• B
• Li
• He